| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Søballe, Kjeld
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2015The Influence of Hemostatic Agents on Bone Healing After Sternotomy in a Porcine Modelcitations
- 2012Cobalt release from implants and consumer items and characteristics of cobalt sensitized patients with dermatitiscitations
- 2012Acid etching and plasma sterilization fail to improve osseointegration of grit blasted titanium implantscitations
- 2010Acid etching does not improve CoCrMo implant osseointegration in a canine implant model
- 2009Local bisphosphonate treatment increases fixation of hydroxyapatite-coated implants inserted with bone compactioncitations
- 2009Clinical comparison of polyethylene wear with zirconia or cobalt-chromium femoral headscitations
- 2008Bone growth enhancement in vivo on press-fit titanium alloy implants with acid etched microtexturecitations
- 2007Cobalt-chromium-molybdenum alloy causes metal accumulation and metallothionein up-regulation in rat liver and kidney.citations
- 2005In vivo study of the effect of RGD treatment on bone ongrowth on press-fit titanium alloy implantscitations
Places of action
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article
Clinical comparison of polyethylene wear with zirconia or cobalt-chromium femoral heads
Abstract
Ceramic femoral heads were developed to reduce the wear of conventional ultrahigh-molecular-weight polyethylene (UHMWPE) bearing surfaces in THA. We compared the wear rates of PE acetabular components bearing against femoral heads of zirconia (Zr) or cobalt-chromium (CoCr) in young patients. One surgeon inserted CoCr femoral heads in all 33 patients (33 hips) having THA for primary osteoarthritis from 1996 to 1997 and then Zr femoral heads in all 34 patients (36 hips) from 1998 to 1999. The mean age of the entire cohort was 52.5 years (range, 29-64 years). The shells were solid and hydroxyapatite (HA) -coated, liners were argon-sterilized UHMWPE, and head size was 28 mm. The minimum clinical followup was 56 months (mean, 65 months; range, 56-77 months); minimum 5-year radiographs were available for 62 of the 68 patients. Wear analysis of digitized anteroposterior (AP) radiographs was performed with a computerized method. Demographic data were comparable in the two groups. Mean femoral head penetration rate was similar in the two types of heads (CoCr: 0.25 mm/year; range, 0.21-0.33 mm/year; Zr: 0.23 mm/year; range, 0.20-0.29 mm/year), as was mean linear wear (CoCr: 1.22 mm; range, 0.28-3.78 mm; Zr: 1.11 mm; range, 0.15-2.05 mm). There were no revisions. These data support skepticism regarding the clinical wear advantage of Zr compared with CoCr femoral heads. The explanation for the clinical similarity of wear, despite the theoretical advantages of ceramic heads, needs further investigation. Level of Evidence: Level III, therapeutic study. See Guidelines for Authors for a complete description of levels of evidence.